22620808 has 32 divisors (see below), whose sum is σ = 49204800. Its totient is φ = 9548352.

The previous prime is 22620797. The next prime is 22620817. The reversal of 22620808 is 80802622.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 738 + ... + 6766.

It is an arithmetic number, because the mean of its divisors is an integer number (1537650).

Almost surely, 2^22620808 is an apocalyptic number.

22620808 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22620808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24602400).

22620808 is an abundant number, since it is smaller than the sum of its proper divisors (26583992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22620808 is a wasteful number, since it uses less digits than its factorization.

22620808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6109 (or 6105 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 22620808 is about 4756.1337239401. The cubic root of 22620808 is about 282.8151723016.

The spelling of 22620808 in words is "twenty-two million, six hundred twenty thousand, eight hundred eight".